u

2026-06-22 20:50:10 +10:00
parent b63ad2d95d
commit 5c25a2e856
7 changed files with 218 additions and 0 deletions
@@ -0,0 +1,33 @@
+package top100liked
+
+// https://leetcode.cn/problems/binary-tree-right-side-view/description/?envType=study-plan-v2&envId=top-100-liked
+
+type TreeNode struct {
+	Val   int
+	Left  *TreeNode
+	Right *TreeNode
+}
+
+func rightSideView(root *TreeNode) []int {
+	if root == nil {
+		return []int{}
+	}
+	queue := []*TreeNode{root}
+	res := []int{}
+	for len(queue) > 0 {
+		tmpQueue := []*TreeNode{}
+		for i := range queue {
+			if i == len(queue)-1 {
+				res = append(res, queue[i].Val)
+			}
+			if queue[i].Left != nil {
+				tmpQueue = append(tmpQueue, queue[i].Left)
+			}
+			if queue[i].Right != nil {
+				tmpQueue = append(tmpQueue, queue[i].Right)
+			}
+		}
+		queue = tmpQueue
+	}
+	return res
+}